Touch Sensor Integrated Type Display Device

ABSTRACT

Disclosed is a display device integrated with a touch sensor that may include a plurality of gate lines and a plurality data lines crossing each other; a plurality of pixel electrodes between the data lines; a plurality of touch/common electrodes arranged in a first direction and a second direction that cross each other, each of the plurality of touch/common electrodes overlapping at least one pixel electrode; 1-1 routing wires connected to 1-1 touch/common electrodes; 1-2 routing wires connected to 1-2 touch/common electrodes; 2-1 routing wires connected to 2-1 touch/common electrodes; and 2-2 routing wires connected to 2-2 touch/common electrodes.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a divisional of U.S. patent application Ser. No.14/925,782 filed on Oct. 28, 2015, which claims the benefit of Republicof Korea Patent Application No. 10-2014-0191141 filed on Dec. 26, 2014and Republic of Korea Patent Application No. 10-2015-0137874 filed onSep. 30, 2015, all of which are hereby incorporated by reference for allpurposes as if fully set forth herein.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a display device integrated with atouch sensor.

Discussion of the Related Art

In recent years, various flat panel display devices have been developedto meet the needs for appropriately displaying various types ofmulti-media. The development of flat panel display devices has beendirected to achieving large screen, low manufacturing costs, and highqualities such as displaying moving images of high quality, highresolution, high brightness, high contrast ratio, and wide colorreproduction range. Also, various input devices, such as a keyboard, amouse, a track ball, a joystick, and a digitizer, have been used toallow a user to interface with flat panel display devices.

However, the user may become dissatisfied due to the need to learn howto use various types of input devices. Furthermore, these input devicesoccupy physical space. Thus, there has been an increased demand for aconvenient and simple input device capable of reducing erroneousoperations. In response to such a demand, a touch sensor has beenproposed to enable the user to input desired information by directlytouching a screen, or by approaching the screen with his or her hand ora pen while the user watches the display device.

The touch sensor may have a simple configuration capable of reducingerroneous operations. The user may be able to perform an input actionwithout using a separate input device, and can quickly and easilyoperate the display device using the touch sensor while watching thecontents displayed on the screen. Thus, such a touch sensor has beenapplied to various types of display devices.

Touch sensors may be classified into an add-on type touch sensor, anon-cell type touch sensor, and an integrated type (also referred to asin-cell type) touch sensor, depending on their structures. The add-ontype touch sensor may be configured such that a display device and atouch panel including a touch sensor are individually manufactured, andthen the touch panel may be attached to an upper substrate of thedisplay device. The on-cell type touch sensor may be configured suchthat the touch sensor may be directly formed on the surface of an upperglass substrate of the display device. The integrated type touch sensormay be configured such that the touch sensor may be formed inside thedisplay device to thereby achieve thin profile and increase durabilityof the display device.

The integrated type touch sensor has such advantages of thin profile andimproved durability, because typically, the common electrodes of thedisplay device also serve as the touch electrodes of the touch sensor.Due to these advantages over the add-on type and on-cell type touchsensors, the integrated type touch sensor has been recent focus ofinterest in display industry.

The integrated type touch sensor may be divided into an optical touchsensor and a capacitive touch sensor, depending on the method of sensinga touched portion. The capacitive touch sensor may be further dividedinto a self-capacitive touch sensor and a mutual capacitive touchsensor.

The self-capacitive touch sensor may have a plurality of independentpatterns in a touch area of a touch sensing panel, and measure changesin capacitance of each independent pattern, thereby detecting whether ornot a touch operation is performed. On the other hand, the mutualcapacitive touch sensor may have X-axis direction electrode strings (forexample, driving electrode strings) and Y-axis direction electrodestrings (for example, sensing electrode strings) which cross each otherin the touch area of the touch sensing panel in matrix, apply a drivingpulse to the X-axis electrode strings, and sense changes in voltagesgenerated in sensing nodes defined as the crossings of the X-axisdirection electrode strings and the Y-axis direction electrode stringsthrough the Y-axis direction electrode strings, thereby detectingwhether or not a touch operation is performed.

However, in the mutual capacitive touch sensor, a mutual capacitancebetween the X-axis direction electrode strings and the Y-axis directionelectrode strings is small, but parasitic capacitance generated in theX-axis direction electrode strings and the Y-axis direction electrodestrings by the data lines and the gate lines arranged in the displaydevice is large. As a result, it may be difficult to detect withprecision touched positions.

Also, the mutual capacitive touch sensor has a complicated constructionof routing wires, because touch driving routing wires are connected totouch driving electrode strings (for example, the X-axis directionelectrode strings) and because touch sensing routing wires are connectedto touch sensing electrode strings (for example, the Y-axis directionelectrode strings) for multi-touch operation.

For these reasons, the self-capacitive touch sensor, which has a simpleconstruction of routing wires and high touch sensibility, has beenwidely used.

Hereinafter, a display device integrated with a self-capacitive touchsensor (hereinafter, simply referred to as “touch sensor integrated typedisplay device”) according to the related art will be described withreference to FIG. 1. The display device may be a liquid crystal displaydevice, although it may also be an organic light emitting display deviceor other types of display devices.

FIG. 1 is a planar view illustrating a touch sensor integrated typeliquid crystal display according to the related art.

As illustrated in FIG. 1, the touch sensor integrated display deviceincludes an active area AA, in which touch/common electrodes arearranged and data are displayed, and a bezel area BA outside the activearea AA. The bezel area BA has various wires including routing wires fordriving and sensing touch electrodes and an integrated circuit (10) fordriving a source driver.

The active area AA includes a plurality of touch/common electrodes Tx11to Tx14, Tx21 to Tx24, Tx31 to Tx34, Tx41 to Tx44 and Tx51 to Tx54, anda plurality of routing wires TW11 to TW14, TW 21 to TW24, TW31 to TW34,TW 41 to TW44 and TW51 to TW54 connected to the plurality oftouch/common electrodes Tx11 to Tx14, Tx21 to Tx24, Tx31 to Tx34, Tx41to Tx44 and Tx51 to Tx54, respectively. The plurality of touch/commonelectrodes Tx11 to Tx14, Tx21 to Tx24, Tx31 to Tx34, Tx41 to Tx44 andTx51 to Tx54 are divided in a first direction (e.g., x-axis direction)and a second direction (e.g., y-axis direction) which cross to eachother. The plurality of routing wires TW11 to TW14, TW 21 to TW24, TW31to TW34, TW 41 to TW44 and TW51 to TW54 are arranged in parallel to eachother along the second direction.

The plurality of touch/common electrodes Tx11 to Tx14, Tx21 to Tx24,Tx31 to Tx34, Tx41 to Tx44 and Tx51 are formed by dividing commonelectrodes of the display device. The plurality of touch/commonelectrodes Tx11 to Tx14, Tx21 to Tx24, Tx31 to Tx34, Tx41 to Tx44 andTx51 may function as common electrodes during a display mode fordisplaying image data, and function as touch electrodes during a touchmode for detecting touch locations.

The integrated circuit 10 in the bezel area BA supplies image data todata lines in synchronization with driving of gate lines (not shown) ofthe display, and supplies a common voltage to the touch/commonelectrodes Tx11 to Tx14, Tx21 to Tx24, Tx31 to Tx34, Tx41 to Tx44 andTx51 during the display mode. Also, the integrated circuit 10 supplies atouch driving voltage to the touch/common electrodes Tx11 to Tx14, Tx21to Tx24, Tx31 to Tx34, Tx41 to Tx44 and Tx51 to Tx54 during the touchmode, and detects a touch location by scanning changes of touch/commonelectrodes before and after the touch is performed.

The touch sensor integrated display device includes various wires, forexample, the routing wires TW11 to TW14, TW 21 to TW24, TW31 to TW34, TW41 to TW44 and TW51 to TW54 and the data lines (not shown) extended fromthe active area AA and connected to the integrated circuit 10.

The routing wires TW11 to TW14, TW 21 to TW24, TW31 to TW34, TW 41 toTW44 and TW51 to TW54 are connected to the touch/common electrodes Tx11to Tx14, Tx21 to Tx24, Tx31 to Tx34, Tx41 to Tx44 and Tx51 to Tx54 on aone-to-one basis. As a result, as the size of the touch sensorintegrated type display device increases, the number of the routingwires also increases, because each of the routing wires is connected toeach of the touch/common electrodes.

For example, when a touch sensor integrated type display device having asize of 15.6 inch is constructed with one touch/common electrode on apitch size of 4.3 mm×4.3 mm, the touch, 80 touch electrodes are arrangedin the x-axis direction and 45 common electrodes are arranged in they-axis direction, resulting in a total number of touch/common electrodesof 3,600. In such a case, the 3,600 touch/common electrodes areconnected to the integrated circuit 10 through 3,600 routing wires. Therouting wires have to be arranged to overlap the data lines to preventreduction of the aperture ratio of the display device.

Thus, when the routing wires are arranged in only one direction, thesize of the touch/common electrodes should be enlarged or there may bean occasion where some of touch/common electrodes are not connected tothe routing wires, thereby to reduce touch sensibility.

SUMMARY OF THE INVENTION

Accordingly, the present invention is directed to a display deviceintegrated with a touch sensor and method for manufacturing the same,which substantially obviates one or more problems due to limitations anddisadvantages of the related art.

An advantage of the present invention is to provide a display deviceintegrated with a touch sensor with an improved touch sensibility.

Additional features and advantages of the invention will be set forth inthe description which follows, and in part will be apparent from thedescription, or may be learned by practice of the invention. These andother advantages of the invention will be realized and attained by thestructure particularly pointed out in the written description and claimshereof as well as the appended drawings.

To achieve these and other advantages and in accordance with the purposeof the present invention, as embodied and broadly described, a displaydevice integrated with a touch sensor may, for example, include aplurality of gate lines and a plurality data lines crossing each other;a plurality of pixel electrodes between the data lines; a plurality oftouch/common electrodes arranged in a first direction and a seconddirection that cross each other, each of the plurality of touch/commonelectrodes overlapping at least one pixel electrode; 1-1 routing wiresconnected to 1-1 touch/common electrodes of the plurality oftouch/common electrodes that are disposed at odd numbered rows of oddnumbered columns, respectively, the 1-1 routing wires being arranged insubstantially parallel with any the first direction; 1-2 routing wiresconnected to 1-2 touch/common electrodes of the plurality oftouch/common electrodes that are disposed at the odd numbered rows ofeven numbered columns, respectively, the 1-2 routing wires beingarranged in substantially parallel in the second direction; 2-1 routingwires connected to 2-1 touch/common electrodes of the plurality oftouch/common electrodes that are disposed at even numbered rows of oddnumbered columns, respectively, the 2-1 routing wires being arranged insubstantially parallel in the second direction; and 2-2 routing wiresconnected to 2-2 touch/common electrodes of the plurality oftouch/common electrodes that are disposed at even numbered rows of evennumbered columns, respectively, the 2-2 routing wires being arranged insubstantially parallel in the first direction.

In one embodiment, the 1-1 and 2-2 routing wires may overlap theplurality of gate lines in substantially parallel with the firstdirection and the 1-2 and 2-1 routing wires overlap the plurality ofdata lines that are in substantially parallel with the second direction.In another embodiment, the 1-1 and 2-2 routing wires overlap theplurality of data lines in substantially parallel with the firstdirection and the 1-2 and 2-1 routing wires overlap the plurality ofgate lines that are in substantially parallel with the second direction.

The display device further comprises a plurality of thin filmtransistors, each thin film transistor being connected to one of theplurality of gate lines and one of the plurality of data lines, whereinthe plurality of pixel electrodes are disposed on an insulation layercovering the plurality of thin film transistors, and connected to theplurality of thin film transistors, respectively, wherein the 1-2 and2-1 routing wires are disposed in substantially parallel to each otheron a first passivation layer covering the plurality of pixel electrodes,wherein the 1-1 and 2-2 routing wires are disposed in substantiallyparallel to each other on a second passivation layer covering the 1-2and 2-1 routing wires, and the plurality of touch/common electrodesdisposed on a third passivation layer covering the 1-1 and 2-2 routingwires.

Each of the 1-1 routing wires is connected to each of the 1-1touch/common electrodes via a first contact hole passing through thethird passivation layer, and each of the 2-2 routing wires is connectedto each of the 2-2 touch/common electrodes via a second contact holepassing through the third passivation layer.

Each of the 1-2 routing wires is connected to each of the 1-2touch/common electrodes via a third contact hole passing through thesecond and third passivation layers, and each of the 2-1 routing wiresis connected to each of the 2-1 touch/common electrodes via a fourthcontact hole passing through the second and third passivation layers.

The display device further comprises a plurality of thin filmtransistors, each thin film transistor being connected to one of theplurality of gate lines and one of the plurality of data lines, whereinthe 1-1 and 2-2 routing wires are disposed on a layer on which theplurality of gate lines are disposed and arranged in substantiallyparallel with the plurality of gate lines, wherein the data lines aredisposed on an gate insulation film covering the plurality of gatelines, the 1-1 and 2-2 routing wires which are disposed on a substrate,wherein each of the plurality of pixel electrodes are connected to adrain electrode of each of the plurality of thin film transistors whichare disposed on a layer on which the plurality of data lines aredisposed, wherein the 1-2 and 2-1 routing wires are disposed insubstantially parallel to each other on a first passivation layercovering the plurality of pixel electrodes, and wherein the plurality oftouch/common electrodes are disposed on a second passivation layercovering the 1-2 and 2-1 routing wires.

Each of the 1-1 touch/common electrodes is connected to each of the 1-1routing wires via a first contact hole exposing the 1-1 routing wire,and each of the 2-2 touch/common electrodes is connected to each of the2-2 routing wires via a second contact hole exposing the 2-2 routingwire.

Each of the 1-2 touch/common electrodes is connected to each of the 1-2routing wires via a third contact hole passing through the secondpassivation layer, and each of the 2-1 touch/common electrodes isconnected to each of the 2-1 routing wires via a fourth contact holepassing through the second passivation layer.

A common voltage is supplied to the plurality of touch/common electrodesduring a display operation period, and a touch driving voltage issupplied to the plurality of touch/common electrodes, the plurality ofgate lines and the plurality of data lines during a touch operationperiod.

During the display operation period, the common voltage is supplied tothe touch/common electrodes through a first multiplexer, a gate highvoltage is sequentially supplied to the gate lines through secondmultiplexers, and data voltages are supplied to the data lines throughthird multiplexers, and a gate low voltage is supplied to the gate lineswhen the gate high voltage is not supplied.

During the touch operation period, the touch driving voltage is suppliedto the touch/common electrodes through the first multiplexer, to thegate lines through the second multiplexers, and to the data linesthrough the third multiplexers.

To achieve these and other advantages and in accordance with the purposeof the present invention, as embodied and broadly described, anotherdisplay device integrated with a touch sensor comprises a plurality ofgate lines and a plurality data lines crossing each other; a pluralityof pixel electrodes between the data lines; a plurality of touch/commonelectrodes, each of the plurality of touch/common electrodes overlappingat least one pixel electrode; a first group of routing wires connectedto a first subset of the touch/common electrodes and arranged in a firstdirection from the first subset of the touch/common electrodes; and asecond group of routing wires connected to a second subset of thetouch/common electrodes and arranged in a second direction from thesecond subset of the touch/common electrodes.

In some embodiments, lengths of the first group of routing wires are thesame, and lengths of the second group of routing wires are the same.

In some embodiments, the first direction is the same as an arrangementdirection of the gate lines, and the second direction is the same as anarrangement direction of the data lines.

In other embodiments, the first direction is the same as an arrangementdirection of the data lines, and the second direction is the same as anarrangement direction of the gate lines.

In some embodiments, the first and second subset of touch/commonelectrodes alternate with each other to complete a row of touch commonelectrodes in the first direction.

In other embodiments, the first and second subset of touch/commonelectrodes alternate with each other to complete a column of touchcommon electrodes in the second direction.

The display device further comprises a first drive IC connected to thefirst group of routing wires; and a second drive IC connected to thesecond group of routing wires.

The first drive IC supplies a common voltage to the first subset of thetouch/common electrodes during a display operation period of one frameperiod, and supplies a touch driving voltage to the first subset of thetouch/common electrodes during a touch operation period of the one frameperiod, and the second drive IC supplies the common voltage to thesecond subset of the touch/common electrodes during the displayoperation period, and supplies the touch driving voltage to the secondsubset of the touch/common electrodes during the touch operation period,and during the touch operation period, a first voltage having a phaseand an amplitude same to those of the touch driving voltage is suppliedto the gate lines and a second voltage having a phase and an amplitudesame to those of the touch driving voltage is supplied to the datalines.

To achieve these and other advantages and in accordance with the purposeof the present invention, as embodied and broadly described, anotherdisplay device integrated with a touch sensor comprises a plurality ofgate lines and a plurality data lines crossing each other; a pluralityof pixel electrodes between the data lines; a plurality of touch/commonelectrodes, each of the plurality of touch/common electrodes overlappingat least one pixel electrode; a first group of routing wires connectedto a first subset of the touch/common electrodes and arranged in a firstdirection from the first subset of the touch/common electrodes; a secondgroup of routing wires connected to a second subset of the touch/commonelectrodes and arranged in a second direction from the second subset ofthe touch/common electrodes; a third group of routing wires connected toa third subset of the touch/common electrodes and arranged in a thirddirection from the third subset of the touch/common electrodes; and afourth group of routing wires connected to a fourth subset of thetouch/common electrodes and arranged in the second direction from thefourth subset of the touch/common electrodes.

In other embodiments, the display device further comprises a fifth groupof routing wires connected to a fifth subset of the touch/commonelectrodes and arranged in the first direction from the fifth subset ofthe touch/common electrodes; a sixth group of routing wires connected toa sixth subset of the touch/common electrodes and arranged in a fourthdirection from the sixth subset of the touch/common electrodes; aseventh group of routing wires connected to a seventh subset of thetouch/common electrodes and arranged in the third direction from theseventh subset of the touch/common electrodes; and a eighth group ofrouting wires connected to a eighth subset of the touch/commonelectrodes and arranged in the fourth direction from the eighth subsetof the touch/common electrodes.

Lengths of routing wires belonging to the first group of routing wiresare the same, lengths of routing wires belonging to the second group ofrouting wires are the same, lengths of routing wires belonging to thethird group of routing wires are the same, lengths of routing wiresbelonging to the fourth group of routing wires are the same, lengths ofrouting wires belonging to the fifth group of routing wires are thesame, lengths of routing wires belonging to the sixth group of routingwires are the same, lengths of routing wires belonging to the seventhgroup of routing wires are the same, and lengths of routing wiresbelonging to the eighth group of routing wires are the same.

In some embodiments, the first and third directions are the same as anarrangement direction of the gate lines, and the second and the fourthdirections are the same as an arrangement direction of the data lines.

In other embodiments, the first and third directions are the same as anarrangement direction of the data lines, and the second and the fourthdirections are the same as an arrangement direction of the gate lines.

The display device further comprises a first drive IC connected to thefirst group of routing wires; a second drive IC connected to the secondgroup of routing wires; a third drive IC connected to the third group ofrouting wires; and a fourth drive IC connected to the fourth group ofrouting wires.

The first drive IC is configured to supply a common voltage to the firstsubset of the touch/common electrodes during a display operation periodof one frame period, and supply a touch driving voltage to the firstsubset of the touch/common electrodes during a touch operation period ofthe one frame period, and the second drive IC is configured to supplythe common voltage to the second subset of the touch/common electrodesduring the display operation period, and supply the touch drivingvoltage to the second subset of the touch/common electrodes during thetouch operation period, the third drive IC is configured to supply thecommon voltage to the third subset of the touch/common electrodes duringthe display operation period, and supply the touch driving voltage tothe third subset of the touch/common electrodes during the touchoperation period, and the fourth drive IC is configured to supply thecommon voltage to the fourth subset of the touch/common electrodesduring the display operation period, and supply the touch drivingvoltage to the fourth subset of the touch/common electrodes during thetouch operation period, and the display device is configured to, duringthe touch operation period, supply a first voltage having a phase and anamplitude same as those of the touch driving voltage to the gate linesand supply a second voltage having a phase and an amplitude same asthose of the touch driving voltage to the data lines.

The display device further comprises a first drive IC connected to thefirst group of routing wires; a second drive IC connected to the secondgroup of routing wires; a third drive IC connected to the third group ofrouting wires; a fourth drive IC connected to the fourth group ofrouting wires; a fifth drive IC connected to the fifth group of routingwires; a sixth drive IC connected to the sixth group of routing wires; aseventh drive IC connected to the seventh group of routing wires; and aeighth drive IC connected to the eighth group of routing wires.

The first drive IC is configured to supply a common voltage to the firstsubset of the touch/common electrodes during a display operation periodof one frame period, and supply a touch driving voltage to the firstsubset of the touch/common electrodes during a touch operation period ofthe one frame period, and the second drive IC is configured to supplythe common voltage to the second subset of the touch/common electrodesduring the display operation period, and supply the touch drivingvoltage to the second subset of the touch/common electrodes during thetouch operation period, the third drive IC is configured to supply thecommon voltage to the third subset of the touch/common electrodes duringthe display operation period, and supply a touch driving voltage to thethird subset of the touch/common electrodes during the touch operationperiod, and the fourth drive IC is configured to supply the commonvoltage to the fourth subset of the touch/common electrodes during thedisplay operation period, and supply the touch driving voltage to thefourth subset of the touch/common electrodes during the touch operationperiod, the fifth drive IC is configured to supply a common voltage tothe fifth subset of the touch/common electrodes during the displayoperation period, and supply the touch driving voltage to the fifthsubset of the touch/common electrodes during the touch operation period,and the sixth drive IC is configured to supply the common voltage to thesixth subset of the touch/common electrodes during the display operationperiod, and supply the touch driving voltage to the sixth subset of thetouch/common electrodes during the touch operation period, the seventhdrive IC is configured to supply the common voltage to the seventhsubset of the touch/common electrodes during the display operationperiod, and supply the touch driving voltage to the seventh subset ofthe touch/common electrodes during the touch operation period, and theeighth drive IC is configured to supply the common voltage to the eighthsubset of the touch/common electrodes during the display operationperiod, and supply the touch driving voltage to the eighth subset of thetouch/common electrodes during the touch operation period, and thedisplay device is configured to, during the touch operation period,supply a first voltage having a phase and an amplitude same as those ofthe touch driving voltage to the gate lines and supply a second voltagehaving a phase and an amplitude same as those of the touch drivingvoltage to the data lines.

According to the touch sensor integrated type display device, becausethe routing wires are arranged in, for example, both directions thatcrossing each other, it may be possible to reduce reduction of touchsensibility due to an enlargement of the touch/common electrode or sometouch/common electrodes which are not connected to any routing wires.

Also, it may be possible to reduce parasitic capacitances generatedbetween routing wires and gate lines and/or the routing wires and datalines by providing the same frequency and amplitude as the touch drivingvoltage supplied to the touch/common electrodes during a touch mode tothe gate lines and data lines. That is, it may also be possible toreduce reduction of touch sensibility due to the parasitic capacitances.

It is to be understood that both the foregoing general description andthe following detailed description are exemplary and explanatory and areintended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the invention and are incorporated in and constitute apart of this application, illustrate embodiment(s) of the invention andtogether with the description serve to explain the principles of theinvention. In the drawings:

FIG. 1 is a planar view illustrating a touch sensor integrated typedisplay device according to the related art;

FIG. 2 is a partial exploded perspective view illustrating a touchsensor integrated type display device according to an embodiment of thepresent invention;

FIG. 3 is a planar view illustrating a relationship between touch/commonelectrodes and routing wires in a touch sensor integrated type displaydevice according to the first embodiment of the invention;

FIG. 4 is an enlarged planar view illustrating a region R1 shown in FIG.3;

FIG. 5 is a planar view illustrating a relationship between touch/commonelectrodes and pixel electrodes in a region R2 shown in FIG. 4;

FIG. 6 is a planar view illustrating one example of one pixel area shownin FIG. 5, in which routing wires arranged in a first direction overlapgate lines and another routing wires arranged in a second directionoverlap data lines;

FIG. 7A is a cross-sectional view illustrating one example of aconnection relationship between the routing wires arranged in a firstdirection and the touch/common electrodes connected to the routing wiresin FIG. 6;

FIG. 7B is a cross-sectional view illustrating another example of aconnection relationship between the another routing wires arranged in asecond direction and the touch/common electrodes connected to theanother routing wires in FIG. 6;

FIG. 8 is a planar view illustrating another example of one pixel areashown in FIG. 5, in which routing wires arranged in a first directionare not overlapped with gate lines but arranged in parallel with thegate lines;

FIG. 9A is a cross-sectional view illustrating one example of aconnection relationship between the routing wires arranged in a firstdirection and the touch/common electrodes connected to the routing wiresin FIG. 8;

FIG. 9B is a cross-sectional view illustrating another example of aconnection relationship between the another routing wires arranged in asecond direction and the touch/common electrodes connected to theanother routing wires in FIG. 8;

FIG. 10 is a planar view illustrating a relationship betweentouch/common electrodes and routing wires in a touch sensor integratedtype display device according to the second embodiment of the invention;

FIG. 11 is a planar view illustrating a relationship betweentouch/common electrodes and routing wires in a touch sensor integratedtype display device according to the third embodiment of the invention;

FIG. 12 is a planar view illustrating a relationship betweentouch/common electrodes and routing wires in a touch sensor integratedtype display device according to the fourth embodiment of the invention;

FIG. 13 is a planar view illustrating a relationship betweentouch/common electrodes and routing wires in a touch sensor integratedtype display device according to the fifth embodiment of the invention;

FIG. 14 is a planar view illustrating a relationship betweentouch/common electrodes and routing wires in a touch sensor integratedtype display device according to the sixth embodiment of the invention;and

FIG. 15 is a timing diagram showing a display operation period at adisplay mode and a touch operation period at a touch mode for the touchsensor integrated type display devices according to the first to sixthembodiments of the invention.

DETAILED DESCRIPTION OF THE INVENTION

Reference will now be made in detail to embodiments of the presentinvention, examples of which are illustrated in the accompanyingdrawings. Wherever possible, the same reference numbers may be usedthroughout the drawings to refer to the same or like parts.

In the following description, a liquid crystal display integrated with aself-capacitive touch sensor may be used as an example of a touch sensorintegrated type display device, but the present invention is not limitedthereto. For example, one of ordinary skill in the art would understandthat the present invention can be applied to various types of displaydevices or other electronic devices. Hereinafter a display integratedwith a self-capacitive touch sensor is simply referred to as a touchsensor integrated type display device.

A touch sensor integrated type display device according to an embodimentof the present invention is described with reference to FIGS. 2 and 3.In the embodiment of FIGS. 2 and 3, the display device is a liquidcrystal display device.

FIG. 2 is a partial exploded perspective view illustrating a touchsensor integrated type display device according to an embodiment of thepresent invention, and FIG. 3 is a planar view illustrating arelationship between touch/common electrodes and routing wires in atouch sensor integrated type display device according to the firstembodiment of the invention.

Referring to FIG. 2, the touch sensor integrated type display deviceincludes a liquid crystal display panel LCP having a thin filmtransistor (TFT) array TFTA and a color filter array CFA that are facingeach other, with a liquid crystal layer (not shown) interposedtherebetween.

The TFT array TFTA includes a plurality of gate lines G1 and G2 (twogate lines G1 and G2 are shown, however the TFT array TFTA may includeadditional gate lines not shown) which may be arranged in parallel in afirst direction (e.g., x-axis direction) on a first substrate SUB1, aplurality of data lines D1 and D2 (two data lines D1 and D2 are shown,however the TFTA array may include additional data lines not shown)which may be arranged in parallel in a second direction (e.g., y-axisdirection) to cross the plurality of gate lines G1 and G2, thin filmtransistors TFT disposed at crossings of the gate lines G1 and G2 andthe data lines D1 and D2, a plurality of pixel electrodes Px forcharging data voltages to liquid crystal cells, and a plurality oftouch/common electrodes (not shown) positioned opposite the plurality ofpixel electrodes Px.

The color filter array CFA includes black matrixes (not shown) and colorfilters (not shown), which may be disposed on a second substrate SUB2.Polarizing plates POL1 and POL2 are respectively attached to externalsurfaces of the first substrate SUB1 and the second substrate SUB2 ofthe liquid crystal display panel LCP. Alignment layers (not shown) forsetting a pre-tilt angle of the liquid crystal layer are respectivelyformed on inner surfaces of the first and second substrates SUB1 andSUB2. A plurality of column spacers are disposed between the TFT arrayTFTA and the color filter array CFA to maintain a cell gap of the liquidcrystal display panel LCP.

The touch/common electrodes may be disposed on the second substrate SUB2in a vertical electric field driving manner, such as a twisted nematic(TN) mode and a vertical alignment (VA) mode. Also, the touch/commonelectrodes may be disposed on the first substrate SUB1 along with thepixel electrodes Px in a horizontal electric field driving manner, suchas an in-plane switching (IPS) mode and a fringe field switching (FFS)mode. In the following description, embodiments of the invention will bedescribed based on the horizontal electric field driving manner by wayof example.

Referring to FIG. 3, the touch sensor integrated display deviceaccording to the first embodiment of the invention includes an activearea AA and a bezel area BA outside the active area AA. The active areaAA is an area in which the touch/common electrodes are arranged andimage data are displayed. The bezel area BA is an area in which variouswires including routing wires extended from the active area AA fordriving and sensing touch/common electrodes and display/touch controllerICs for driving source drivers and gate drivers are disposed.

The active area AA may include a plurality of touch/common electrodesTx11 to Tx19, Tx21 to Tx29, Tx31 to Tx39, Tx41 to Tx49, Tx51 to Tx59,Tx61 to Tx69, Tx71 to Tx79, and Tx81 to Tx89. The plurality oftouch/common electrodes Tx11 to Tx19, Tx21 to Tx29, Tx31 to Tx39, Tx41to Tx49, Tx51 to Tx59, Tx61 to Tx69, Tx71 to Tx79, and Tx81 to Tx89 maybe divided in a first direction (e.g., x-axis direction) and a seconddirection (e.g., y-axis direction) which cross each other.

The 1-1 touch/common electrodes Tx11, Tx13, Tx15, Tx17, Tx19; Tx31,Tx33, Tx35, Tx37, Tx39; Tx51, Tx53, Tx55, Tx57, Tx59; Tx71, Tx73, Tx75,Tx77, Tx79 disposed at the odd numbered rows of odd numbered columnsamong the plurality of touch/common electrodes are connected to the 1-1routing wires TW11, TW13, TW15, TW17, TW19; TW31, TW33, TW35, TW37,TW39; TW51, TW53, TW55, TW57, TW59; TW71, TW73, TW75, TW77, TW79arranged in a first direction (e.g., x-axis direction), respectively.That is, the 1-1 touch/common electrodes Tx11, Tx13, Tx15, Tx17, Tx19;Tx31, Tx33, Tx35, Tx37, Tx39; Tx51, Tx53, Tx55, Tx57, Tx59; Tx71, Tx73,Tx75, Tx77, Tx79 are connected to the 1-1 routing wires TW11, TW13,TW15, TW17, TW19; TW31, TW33, TW35, TW37, TW39; TW51, TW53, TW55, TW57,TW59; TW71, TW73, TW75, TW77, TW79, respectively, on a one-to-onerelationship.

The 1-2 touch/common electrodes Tx12, Tx14, Tx16, Tx18; Tx32, Tx34,Tx36, Tx38; Tx52, Tx54, Tx56, Tx58; Tx72, Tx74, Tx76, Tx78 disposed atthe odd numbered rows of even numbered columns among the plurality oftouch/common electrodes are connected to 1-2 routing wires TW12, TW14,TW16, TW18; TW32, TW34, TW36, TW38; TW52, TW54, TW56, TW58; TW72, TW74,TW76, TW78 arranged in a second direction (e.g., y-axis direction),respectively. That is, the 1-2 touch/common electrodes Tx12, Tx14, Tx16,Tx18; Tx32, Tx34, Tx36, Tx38; Tx52, Tx54, Tx56, Tx58; Tx72, Tx74, Tx76,Tx78 are connected to the 1-2 routing wires TW12, TW14, TW16, TW18;TW32, TW34, TW36, TW38; TW52, TW54, TW56, TW58; TW72, TW74, TW76, TW78,respectively, on a one-to-one relationship.

The 1-1 routing wires TW11, TW13, TW15, TW17, TW19; TW31, TW33, TW35,TW37, TW39; TW51, TW53, TW55, TW57, TW59; TW71, TW73, TW75, TW77, TW79are arranged in parallel in the first direction, and 1-2 routing wiresTW12, TW14, TW16, TW18; TW32, TW34, TW36, TW38; TW52, TW54, TW56, TW58;TW72, TW74, TW76, TW78 are arranged in parallel in the second direction.

The 2-1 touch/common electrodes Tx21, Tx23, Tx25, Tx27, Tx29; Tx41,Tx43, Tx45, Tx47, Tx49; Tx61, Tx63, Tx65, Tx67, Tx69; Tx81, Tx83, Tx85,Tx87, Tx89 disposed at the even numbered rows of odd numbered columnsamong the plurality of touch/common electrodes are connected to 2-1routing wires TW21, TW23, TW25, TW27, TW29; TW41, TW43, TW45, TW47,TW49; TW61, TW63, TW65, TW67, TW69; TW81, TW83, TW85, TW87, TW89arranged in the second direction (e.g., y-axis direction), respectively.That is, the 2-1 touch/common electrodes Tx21, Tx23, Tx25, Tx27, Tx29;Tx41, Tx43, Tx45, Tx47, Tx49; Tx61, Tx63, Tx65, Tx67, Tx69; Tx81, Tx83,Tx85, Tx87, Tx89 are connected to the 2-1 routing wires TW21, TW23,TW25, TW27, TW29; TW41, TW43, TW45, TW47, TW49; TW61, TW63, TW65, TW67,TW69; TW81, TW83, TW85, TW87, TW89, respectively, on a one-to-onerelationship.

The 2-2 touch/common electrodes Tx22, Tx24, Tx26, Tx28; Tx42, Tx44,Tx46, Tx48; Tx62, Tx64, Tx66, Tx68; Tx82, Tx84, Tx86, Tx88 disposed atthe even numbered rows of even numbered columns among the plurality oftouch/common electrodes are connected to the 2-2 routing wires TW22,TW24, TW26, TW28; TW42, TW44, TW46, TW48; TW62, TW64, TW66, TW68; TW82,TW84, TW86, TW88 arranged in the second direction (e.g., y-axisdirection), respectively. That is, the 2-2 touch/common electrodes Tx22,Tx24, Tx26, Tx28; Tx42, Tx44, Tx46, Tx48; Tx62, Tx64, Tx66, Tx68; Tx82,Tx84, Tx86, Tx88 are connected to the 2-2 routing wires TW22, TW24,TW26, TW28; TW42, TW44, TW46, TW48; TW62, TW64, TW66, TW68; TW82, TW84,TW86, TW88, respectively, on a one-to-one relationship.

The 2-1 routing wires TW21, TW23, TW25, TW27, TW29; TW41, TW43, TW45,TW47, TW49; TW61, TW63, TW65, TW67, TW69; TW81, TW83, TW85, TW87, TW89are arranged in parallel in the second direction, and the 2-2 routingwires TW22, TW24, TW26, TW28; TW42, TW44, TW46, TW48; TW62, TW64, TW66,TW68; TW82, TW84, TW86, TW88 are arranged in parallel in the firstdirection.

In the following description, an exemplary relationship between thetouch/common electrodes and the pixel electrodes in the touch sensorintegrated type display device according to the first embodiment of thepresent invention is described with reference to FIGS. 4 and 5.

FIG. 4 is an enlarged planar view illustrating a region R1 shown in FIG.3, and FIG. 5 is a planar view illustrating a relationship betweentouch/common electrodes and pixel electrodes in a region R2 shown inFIG. 4.

Referring to FIGS. 4 and 5, the touch sensor integrated type displaydevice according to the first embodiment of the invention has aconstruction in which nine pixel electrodes, namely the nine pixelelectrodes P11, P12, P13, P21, P22, P23, P31, P32, P33; namely the ninepixel electrodes P14, P15, P16, P24, P25, P26, P34, P35, P36; namely thenine pixel electrodes P41, P42, P43, P51, P52, P53, P61, P62, P63;namely the nine pixel electrodes P44, P45, P46, P54, P55, P56, P64, P65,P66 are in each case disposed in three rows and three columns tocorrespond to each of the touch/common electrodes Tx11, Tx12, Tx21 andTx22. Each of the pixel electrodes P11 to P33, P14 to P36, P41 to P63and P44 to P66 are respectively disposed in areas defined by crossingsof the gate lines GL1 to GL6 and the data lines DL1 to DL 6.

The construction of the touch sensor integrated type display deviceaccording to the first embodiment of the invention illustrated in FIG. 5discloses that the nine pixel electrodes are disposed in three rows andnine columns to correspond to each of the touch/common electrode Tx11,Tx12, Tx21 and Tx22, but the present invention is not limited thereto.It is possible to adjust the number of rows and columns disposed tocorrespond to one touch/common electrode depending on the user's need.Also, this embodiment discloses that the pixel electrodes are disposedin the crossing areas of gate lines GL1 to GL 6 and data lines DL1 to DL6, but the present invention is not limited thereto. For example, thegate lines may be disposed to overlap the pixel electrodes.

In the following description, an exemplary connection relationshipbetween the touch/common electrodes and the routing wires in the touchsensor integrated type display device according to the first embodimentof the present invention is described in detail with reference to FIGS.6 to 7B.

FIG. 6 is a planar view illustrating one example of one pixel area shownin FIG. 5, in which routing wires arranged in a first direction overlapgate lines, and another routing wires arranged in a second directionoverlap data lines. FIG. 7A is a cross-sectional view illustrating oneexample of a connection relationship between the routing wires arrangedin a first direction and the touch/common electrodes connected to therouting wires in FIG. 6. FIG. 7B is a cross-sectional view illustratinganother example of a connection relationship between the other routingwires arranged in the second direction and the touch/common electrodesconnected to the other routing wires in FIG. 6. In the followingdescription, one pixel area is used to briefly describe the embodimentof the present invention.

Referring to FIGS. 5 to 7B, the touch sensor integrated type displaydevice according to the first embodiment of the invention includes thegate lines GL1 to GL6 and the data lines DL1 and DL6 which cross eachother on the first substrate SUB1, the thin film transistors TFTdisposed at crossings of the gate lines GL1 to GL6 and the data linesDL1 and DL6, the pixel electrodes P11 to P66 respectively disposed inareas defined by the crossings of the gate lines GL1 to GL6 and the datalines DL1 and DL6, and the touch/common electrodes Tx11, Tx12, Tx21 andTx22 positioned opposite the pixel electrodes P11-P33, P14-P36, P41-P63and P44-P66. The touch/common electrodes Tx11, Tx12, Tx21 and Tx22 serveas common electrodes during a display operation period, and serve astouch electrodes during a touch operation period.

The gate lines GL1 to GL6 are arranged in parallel on the firstsubstrate SUB1. A gate insulation film GI is disposed to cover the gatelines GL1 to GL6. An active layer A, a source electrode SE and a drainelectrode DE are sequentially disposed on the gate insulation film GI toconstruct the thin film transistor TFT.

The thin film transistor TFT includes a gate electrode GE respectivelyextended from the gate lines GL1 to GL6, the active layer A disposed toface the gate electrode GE on the gate insulation film GI, and thesource electrode SE and drain electrode DE separated from each other toexpose a part of the active layer A on the gate insulation film GI. Thesource electrode SE may be respectively extended from the data lines DL1to DL6.

By way of example, the first embodiment of the invention describes athin film transistor having a gate bottom structure, in which the gateelectrode is disposed under the source and drain electrodes, but thepresent invention is not limited to this example. One of ordinary skillin the art would understand that the present invention also covers, forexample, a thin film transistor having a top gate structure, in whichthe gate electrode is disposed on the source and drain electrodes.Because a thin film transistor having the top gate structure is known, adetailed description thereof will be omitted.

A first insulation layer INS1 is disposed on the gate insulation film GIto cover the thin film transistor TFT and the data lines DL1 to DL6. Asecond insulation layer INS2 is disposed on the first insulation layerINS1 for planarization. The pixel electrodes P11 to P66 are disposed onthe second insulation layer INS2. Each of the pixel electrodes P11 toP66 is connected to the drain electrode DE through a contact holepassing through the first and second insulation layer INS1 and INS2.

A first passivation layer PAS1 is disposed on the second insulationlayer INS2 to cover the pixel electrodes P11 to P66. On the firstpassivation layer PAS1, the 1-1 routing wires TW11, TW13, TW15, TW17,TW19; TW31, TW33, TW35, TW37, TW39; TW51, TW53, TW55, TW57, TW59; TW71,TW73, TW75, TW77, TW79 to be connected to the 1-1 touch/commonelectrodes Tx11, Tx13, Tx15, Tx17, Tx19; Tx31, Tx33, Tx35, Tx37, Tx39;Tx51, Tx53, Tx55, Tx57, Tx59; Tx71, Tx73, Tx75, Tx77, Tx79, and the 2-2routing wires TW22, TW24, TW26, TW28; TW42, TW44, TW46, TW48; TW62,TW64, TW66, TW68; TW82, TW84, TW86, TW88 to be connected to the 2-2touch/common electrodes Tx22, Tx24, Tx26, Tx28; Tx42, Tx44, Tx46, Tx48;Tx62, Tx64, Tx66, Tx68; Tx82, Tx84, Tx86, Tx88 are disposed in parallelin the first direction (e.g., x-axis direction).

A second passivation layer PAS2 is disposed on the first passivationlayer PAS1, and the 1-1 routing wires TW11, TW13, TW15, TW17, TW19;TW31, TW33, TW35, TW37, TW39; TW51, TW53, TW55, TW57, TW59; TW71, TW73,TW75, TW77, TW79 and the 2-2 routing wires TW22, TW24, TW26, TW28; TW42,TW44, TW46, TW48; TW62, TW64, TW66, TW68; TW82, TW84, TW86, TW88 aredisposed on the second passivation layer PAS2. A third passivation layerPAS3 is disposed on the second passivation layer PAS2 to cover the 1-1and 2-2 routing wires.

On the first passivation layer PAS1 and under the second passivationlayer PAS2, the 1-2 routing wires TW12, TW14, TW16, TW18; TW32, TW34,TW36, TW38; TW52, TW54, TW56, TW58; TW72, TW74, TW76, TW78 to beconnected to the 1-2 touch/common electrodes Tx12, Tx14, Tx16, Tx18;Tx32, Tx34, Tx36, Tx38; Tx52, Tx54, Tx56, Tx58; Tx72, Tx74, Tx76, Tx78,and the 2-1 routing wires TW21, TW23, TW25, TW27, TW29; TW41, TW43,TW45, TW47, TW49; TW61, TW63, TW65, TW67, TW69; TW81, TW83, TW85, TW87,TW89 to be connected to the 2-1 touch/common electrodes Tx21, Tx23,Tx25, Tx27, Tx29; Tx41, Tx43, Tx45, Tx47, Tx49; Tx61, Tx63, Tx65, Tx67,Tx69; Tx81, Tx83, Tx85, Tx87, Tx89 are disposed in parallel in thesecond direction (e.g., y-axis direction).

A second passivation layer PAS2 is disposed on the first passivationlayer PAS1 to cover the 1-2 routing wires TW12, TW14, TW16, TW18; TW32,TW34, TW36, TW38; TW52, TW54, TW56, TW58; TW72, TW74, TW76, TW78 and the2-1 routing wires TW21, TW23, TW25, TW27, TW29; TW41, TW43, TW45, TW47,TW49; TW61, TW63, TW65, TW67, TW69; TW81, TW83, TW85, TW87, TW89.

On the third passivation layer PAS3, the touch/common electrodes Tx11 toTx19, Tx21 to Tx29, Tx31 to Tx39, Tx41 to Tx49, Tx51 to Tx59, Tx61 toTx69, Tx71 to Tx79, Tx81 to Tx89 shown in FIG. 3 are disposed.

The 1-1 touch/common electrodes Tx11, Tx13, Tx15, Tx17, Tx19; Tx31,Tx33, Tx35, Tx37, Tx39; Tx51, Tx53, Tx55, Tx57, Tx59; Tx71, Tx73, Tx75,Tx77, Tx79 are respectively connected to the 1-1 routing wires TW11,TW13, TW15, TW17, TW19; TW31, TW33, TW35, TW37, TW39; TW51, TW53, TW55,TW57, TW59; TW71, TW73, TW75, TW77, TW79 disposed on the secondpassivation layer PAS2 via first contact holes CH11 passing through thethird passivation layer PAS3, as illustrated in FIGS. 3, 5 and 7A. The2-2 touch/common electrodes Tx22, Tx24, Tx26, Tx28; Tx42, Tx44, Tx46,Tx48; Tx62, Tx64, Tx66, Tx68; Tx82, Tx84, Tx86, Tx88 are respectivelyconnected to the 2-2 routing wires TW22, TW24, TW26, TW28; TW42, TW44,TW46, TW48; TW62, TW64, TW66, TW68; TW82, TW84, TW86, TW88 disposed onthe second passivation layer PAS2 via second contact holes CH22 passingthrough the third passivation layer PAS3, as illustrated in FIGS. 3, 5and 7A.

The 1-2 touch/common electrodes Tx12, Tx14, Tx16, Tx18; Tx32, Tx34,Tx36, Tx38; Tx52, Tx54, Tx56, Tx58; Tx72, Tx74, Tx76, Tx78 arerespectively connected to the 1-2 routing wires TW12, TW14, TW16, TW18;TW32, TW34, TW36, TW38; TW52, TW54, TW56, TW58; TW72, TW74, TW76, TW78disposed on the first passivation layer PAS1 via third contact holesCH12 passing through the second and third passivation layers PAS2 andPAS3, as illustrated in FIGS. 3, 5 and 7B. The 2-1 touch/commonelectrodes Tx21, Tx23, Tx25, Tx27, Tx29; Tx41, Tx43, Tx45, Tx47, Tx49;Tx61, Tx63, Tx65, Tx67, Tx69; Tx81, Tx83, Tx85, Tx87, Tx89 arerespectively connected to the 2-1 routing wires TW21, TW23, TW25, TW27,TW29; TW41, TW43, TW45, TW47, TW49; TW61, TW63, TW65, TW67, TW69; TW81,TW83, TW85, TW87, TW89 disposed on the first passivation layer PAS1 viafourth contact holes CH21 passing through the second and thirdpassivation PAS2 and PAS3, as illustrated in FIGS. 3, 5 and 7B.

In the following description, another example of a connectionrelationship between touch/common electrodes and the routing wires inthe touch sensor integrated type display device according to the firstembodiment of the invention is described in detail with reference toFIGS. 8 to 9B.

FIG. 8 is a planar view illustrating another example of one pixel areashown in FIG. 5, in which routing wires arranged in a first directionare not overlapped with gate lines but arranged in parallel with thegate lines. FIG. 9A is a cross-sectional view illustrating one exampleof a connection relationship between the routing wires arranged in afirst direction and the touch/common electrodes connected to the routingwires in FIG. 8. FIG. 9B is a cross-sectional view illustrating anotherexample of a connection relationship between other routing wiresarranged in a second direction and the touch/common electrodes connectedto the other routing wires in FIG. 8. In order to briefly describe theembodiment of the invention, one pixel area is illustrated.

The example illustrated in FIGS. 8 to 9B is substantially the same asthe example illustrated in FIGS. 6 to 7B, except the positions of the1-1, the 1-2, the 2-1 and 2-2 routing wires, and the 1-1, the 1-2, the2-1 and 2-2 touch/common electrodes, a connection relationship betweenthe 1-1, the 1-2, the 2-1 and 2-2 routing wires and the 1-1, the 1-2,the 2-1 and 2-2 touch/common electrodes, and an absence of the thirdpassivation layer PAS3. Accordingly, the example of the FIGS. 8 to 9Bhas an advantage of making the thickness to be thinner because it doesnot need the third passivation layer PAS3. In the following description,the example illustrated in FIGS. 8 to 9B will be described, focusing onthe differences between the example illustrated in FIGS. 8 to 9B and theexample illustrated in FIGS. 6 to 7B.

In the touch sensor integrated type display device according to theexample of FIGS. 8 to 9B, the 1-1 touch/common electrodes Tx11, Tx13,Tx15, Tx17, Tx19; Tx31, Tx33, Tx35, Tx37, Tx39; Tx51, Tx53, Tx55, Tx57,Tx59; Tx71, Tx73, Tx75, Tx77, Tx79, the 1-2 touch/common electrodesTx12, Tx14, Tx16, Tx18; Tx32, Tx34, Tx36, Tx38; Tx52, Tx54, Tx56, Tx58;Tx72, Tx74, Tx76, Tx78, the 2-1 touch/common electrodes Tx21, Tx23,Tx25, Tx27, Tx29; Tx41, Tx43, Tx45, Tx47, Tx49; Tx61, Tx63, Tx65, Tx67,Tx69; Tx81, Tx83, Tx85, Tx87, Tx89 and the 2-2 touch/common electrodesTx22, Tx24, Tx26, Tx28; Tx42, Tx44, Tx46, Tx48; Tx62, Tx64, Tx66, Tx68;Tx82, Tx84, Tx86, Tx88 are disposed on the second passivation PAS2. The1-1 routing wires TW11, TW13, TW15, TW17, TW19; TW31, TW33, TW35, TW37,TW39; TW51, TW53, TW55, TW57, TW59; TW71, TW73, TW75, TW77, TW79, andthe 2-2 routing wires TW22, TW24, TW26, TW28; TW42, TW44, TW46, TW48;TW62, TW64, TW66, TW68; TW82, TW84, TW86, TW88 are arranged in parallelin the first direction on the same layer as the gate lines GL, but arenot overlapped with the gate lines GL. The 1-2 routing wires TW12, TW14,TW16, TW18; TW32, TW34, TW36, TW38; TW52, TW54, TW56, TW58; TW72, TW74,TW76, TW78 and the 2-1 routing wires TW21, TW23, TW25, TW27, TW29; TW41,TW43, TW45, TW47, TW49; TW61, TW63, TW65, TW67, TW69; TW81, TW83, TW85,TW87, TW89 are disposed on the first passivation layer PAS1.

The 1-1 touch/common electrodes Tx11, Tx13, Tx15, Tx17, Tx19; Tx31,Tx33, Tx35, Tx37, Tx39; Tx51, Tx53, Tx55, Tx57, Tx59; Tx71, Tx73, Tx75,Tx77, Tx79 are connected to the 1-1 routing wires TW11, TW13, TW15,TW17, TW19; TW31, TW33, TW35, TW37, TW39; TW51, TW53, TW55, TW57, TW59;TW71, TW73, TW75, TW77, TW79 disposed on the first substrate SUB1 viafirst contact holes CH11 passing through the gate insulation film GI,the first and second insulation layers INS1 and INS2, and the first andsecond passivation layers PAS1 and PAS2, as illustrated in FIGS. 5, 8and 9A. The 2-2 touch/common electrodes Tx22, Tx24, Tx26, Tx28; Tx42,Tx44, Tx46, Tx48; Tx62, Tx64, Tx66, Tx68; Tx82, Tx84, Tx86, Tx88 areconnected to the 2-2 routing wires TW22, TW24, TW26, TW28; TW42, TW44,TW46, TW48; TW62, TW64, TW66, TW68; TW82, TW84, TW86, TW88 disposed onthe first substrate SUB1 via second contact holes CH22 passing throughthe gate insulation film GI, the first and second insulation layers INS1and INS2, and the first and second passivation layers PAS1 and PAS2, asillustrated in FIGS. 5, 8 and 9A.

The 1-2 routing wires TW12, TW14, TW16, TW18; TW32, TW34, TW36, TW38;TW52, TW54, TW56, TW58; TW72, TW74, TW76, TW78 and the 2-1 routing wiresTW21, TW23, TW25, TW27, TW29; TW41, TW43, TW45, TW47, TW49; TW61, TW63,TW65, TW67, TW69; TW81, TW83, TW85, TW87, TW89 are disposed in parallelin the second direction on the first passivation layer PAS1, asillustrated in FIGS. 8 and 9B.

The 1-2 touch/common electrodes TW12, TW14, TW16, TW18; TW32, TW34,TW36, TW38; TW52, TW54, TW56, TW58; TW72, TW74, TW76, TW78 are connectedto the 1-2 routing wires TW12, TW14, TW16, TW18; TW32, TW34, TW36, TW38;TW52, TW54, TW56, TW58; TW72, TW74, TW76, TW78 disposed on the firstpassivation layer PAS1 via third contact holes CH12 passing through thesecond passivation layer PAS2 (see FIGS. 5, 8 and 9B). The 2-1touch/common electrodes Tx21, Tx23, Tx25, Tx27, Tx29; Tx41, Tx43, Tx45,Tx47, Tx49; Tx61, Tx63, Tx65, Tx67, Tx69; Tx81, Tx83, Tx85, Tx87, Tx89are connected to the 2-1 routing wires TW21, TW23, TW25, TW27, TW29;TW41, TW43, TW45, TW47, TW49; TW61, TW63, TW65, TW67, TW69; TW81, TW83,TW85, TW87, TW89 disposed on the first passivation layer PAS1 via fourthcontact holes CH21 passing through the second passivation layer PAS2, asillustrated in FIGS. 5, 8 and 9B.

Hereinafter, a touch sensor integrated type display device according tothe second embodiment of the invention will be described with referenceto FIG. 10.

FIG. 10 is a planar view illustrating a relationship betweentouch/common electrodes and routing wires in a touch sensor integratedtype display device according to the second embodiment of the invention.

Referring to FIG. 10, the touch sensor integrated display deviceaccording to the second embodiment of the invention includes an activearea AA and a bezel area BA outside the active area AA. The active areaAA is an area in which touch/common electrodes are arranged and data aredisplayed. The bezel area BA is an area in which various wires includingrouting wires extended from the active area AA for driving and sensingtouch/common electrodes and display/touch controller ICs for drivingsource drivers and gate drivers may be disposed.

The active area AA may include a plurality of touch/common electrodesTx11 to Tx19, Tx21 to Tx29, Tx31 to Tx39, Tx41 to Tx49, Tx51 to Tx59,Tx61 to Tx69, Tx71 to Tx79, and Tx81 to Tx89. The plurality oftouch/common electrodes Tx11 to Tx19, Tx21 to Tx29, Tx31 to Tx39, Tx41to Tx49, Tx51 to Tx59, Tx61 to Tx69, Tx71 to Tx79, and Tx81 to Tx89 maybe divided in a first direction (e.g., x-axis direction) and a seconddirection (e.g., y-axis direction) which cross each other.

The 1-1 touch/common electrodes Tx11, Tx13, Tx15, Tx17, Tx19; Tx31,Tx33, Tx35, Tx37, Tx39; Tx51, Tx53, Tx55, Tx57, Tx59; Tx71, Tx73, Tx75,Tx77, Tx79 disposed at the odd numbered rows of odd numbered columnsamong the plurality of touch/common electrodes are connected to the 1-1routing wires TW11, TW13, TW15, TW17, TW19; TW31, TW33, TW35, TW37,TW39; TW51, TW53, TW55, TW57, TW59; TW71, TW73, TW75, TW77, TW79arranged in a second direction (e.g., y-axis direction), respectively.That is, the 1-1 touch/common electrodes Tx11, Tx13, Tx15, Tx17, Tx19;Tx31, Tx33, Tx35, Tx37, Tx39; Tx51, Tx53, Tx55, Tx57, Tx59; Tx71, Tx73,Tx75, Tx77, Tx79 are connected to the 1-1 routing wires TW11, TW13,TW15, TW17, TW19; TW31, TW33, TW35, TW37, TW39; TW51, TW53, TW55, TW57,TW59; TW71, TW73, TW75, TW77, TW79, respectively, on a one-to-onerelationship.

The 1-2 touch/common electrodes Tx12, Tx14, Tx16, Tx18; Tx32, Tx34,Tx36, Tx38; Tx52, Tx54, Tx56, Tx58; Tx72, Tx74, Tx76, Tx78 disposed atthe odd numbered rows of even numbered columns among the plurality oftouch/common electrodes are connected to 1-2 routing wires TW12, TW14,TW16, TW18; TW32, TW34, TW36, TW38; TW52, TW54, TW56, TW58; TW72, TW74,TW76, TW78 arranged in a first direction (e.g., x-axis direction),respectively. That is, the 1-2 touch/common electrodes Tx12, Tx14, Tx16,Tx18; Tx32, Tx34, Tx36, Tx38; Tx52, Tx54, Tx56, Tx58; Tx72, Tx74, Tx76,Tx78 are connected to 1-1 routing wires TW12, TW14, TW16, TW18; TW32,TW34, TW36, TW38; TW52, TW54, TW56, TW58; TW72, TW74, TW76, TW78,respectively, on a one-to-one relationship.

The 1-1 routing wires TW11, TW13, TW15, TW17, TW19; TW31, TW33, TW35,TW37, TW39; TW51, TW53, TW55, TW57, TW59; TW71, TW73, TW75, TW77, TW79are arranged in parallel in the second direction, and 1-2 routing wiresTW12, TW14, TW16, TW18; TW32, TW34, TW36, TW38; TW52, TW54, TW56, TW58;TW72, TW74, TW76, TW78 are arranged in parallel in the first direction.

The 2-1 touch/common electrodes Tx21, Tx23, Tx25, Tx27, Tx29; Tx41,Tx43, Tx45, Tx47, Tx49; Tx61, Tx63, Tx65, Tx67, Tx69; Tx81, Tx83, Tx85,Tx87, Tx89 disposed at the even numbered rows of odd numbered columnsamong the plurality of touch/common electrodes are connected to 2-1routing wires TW21, TW23, TW25, TW27, TW29; TW41, TW43, TW45, TW47,TW49; TW61, TW63, TW65, TW67, TW69; TW81, TW83, TW85, TW87, TW89arranged in the first direction (e.g., x-axis direction), respectively.That is, the 2-1 touch/common electrodes Tx21, Tx23, Tx25, Tx27, Tx29;Tx41, Tx43, Tx45, Tx47, Tx49; Tx61, Tx63, Tx65, Tx67, Tx69; Tx81, Tx83,Tx85, Tx87, Tx89 are connected to the 2-1 routing wires TW21, TW23,TW25, TW27, TW29; TW41, TW43, TW45, TW47, TW49; TW61, TW63, TW65, TW67,TW69; TW81, TW83, TW85, TW87, TW89, respectively, on a one-to-onerelationship.

The 2-2 touch/common electrodes Tx22, Tx24, Tx26, Tx28; Tx42, Tx44,Tx46, Tx48; Tx62, Tx64, Tx66, Tx68; Tx82, Tx84, Tx86, Tx88 disposed atthe even numbered rows of even numbered columns among the plurality oftouch/common electrodes are connected to the 2-2 routing wires TW22,TW24, TW26, TW28; TW42, TW44, TW46, TW48; TW62, TW64, TW66, TW68; TW82,TW84, TW86, TW88 arranged in the second direction (e.g., y-axisdirection), respectively. That is, the 2-2 touch/common electrodes Tx22,Tx24, Tx26, Tx28; Tx42, Tx44, Tx46, Tx48; Tx62, Tx64, Tx66, Tx68; Tx82,Tx84, Tx86, Tx88 are connected to the 2-2 routing wires TW22, TW24,TW26, TW28; TW42, TW44, TW46, TW48; TW62, TW64, TW66, TW68; TW82, TW84,TW86, TW88, respectively, on a one to-one relationship.

The 2-1 routing wires TW21, TW23, TW25, TW27, TW29; TW41, TW43, TW45,TW47, TW49; TW61, TW63, TW65, TW67, TW69; TW81, TW83, TW85, TW87, TW89are arranged in parallel in the first direction, and the 2-2 routingwires TW22, TW24, TW26, TW28; TW42, TW44, TW46, TW48; TW62, TW64, TW66,TW68; TW82, TW84, TW86, TW88 are arranged in parallel in the seconddirection.

The touch sensor integrated type display device according to the secondembodiment of the invention is substantially the same as the touchsensor integrated type display device according to the first embodimentof the invention, except for an arrangement of the routing wires.Accordingly, a detailed description for the connection relationshipbetween the routing wires and the touch/common electrodes and thecross-sectional structures of the touch sensor integrated type accordingto the second embodiment of the invention will be omitted because theyare substantially the same as the description related to FIGS. 6 to 9B.

Hereinafter, a touch sensor integrated type display device according tothe third embodiment of the invention will be described with referenceto FIG. 11.

FIG. 11 is a planar view illustrating a relationship betweentouch/common electrodes and routing wires in a touch sensor integratedtype display device according to the third embodiment of the invention.

Referring to FIG. 11, the touch sensor integrated display deviceaccording to the third embodiment of the invention includes an activearea AA and a bezel area BA outside the active area AA. The active areaAA is an area in which touch/common electrodes Tx11 to Tx19, Tx21 toTx29, Tx31 to Tx39, Tx41 to Tx49, Tx51 to Tx59, Tx61 to Tx69, Tx71 toTx79, Tx81 to Tx89 and routing wires TW11 to TW19, TW21 to TW29, TW31 toTW39, TW41 to TW49, TW51 to TW59, TW61 to TW69, TW71 to TW79, TW81 toTW89 are arranged and data are displayed. The bezel area BA is an areain which various wires including routing wires extended from the activearea AA for driving and sensing touch/common electrodes and drive ICsmay be disposed.

The touch sensor integrated type display device according to the thirdembodiment of the invention is substantially the same as the touchsensor integrated type display device according to the first embodimentof the invention, except that lengths of the routing wires TW11, TW13,TW15, TW17, TW19; TW22, TW24, TW26, TW28; TW31, TW33, TW35, TW37, TW39;TW42, TW44, TW46, TW48; TW51, TW53, TW55, TW57, TW59; TW62, TW64, TW66,TW68; and TW71, TW73, TW75, TW77, TW79; TW82, TW84, TW86, TW88 arrangedin the first direction are same as each other (in other words, all thoserouting wires have the same length), and lengths of the routing wiresTW21, TW41, TW61, TW81; TW12, TW32, TW52, TW72; TW23, TW43, TW63, TW83;TW14, TW34, TW54, TW74; TW25, TW45, TW65, TW85; TW16, TW36, TW56, TW76;TW27, TW47, TW67, TW87; TW18, TW38, TW58, TW78; and TW29, TW49, TW69,TW89 arranged in the second direction are same as each other (in otherwords, all those routing wires have the same length).

Accordingly, a detailed description for the connection relationshipbetween the routing wires and the touch/common electrodes and thecross-sectional structures of the touch sensor integrated type accordingto the third embodiment of the invention will be omitted because theyare substantially the same as the description related to FIGS. 6 to 9B.

According to the touch sensor integrated type display device accordingto the third embodiment of the invention, it is possible to removedeviation of parasitic capacitance due to difference in length ofrouting wires because the lengths of the routing wires arranged in thefirst direction are same as each other, and lengths of the routing wiresarranged in the second direction are same as each other. Therefore, itis possible to enhance touch accuracy.

Hereinafter, a touch sensor integrated type display device according tothe fourth embodiment of the invention will be described with referenceto FIG. 12.

FIG. 12 is a planar view illustrating a relationship betweentouch/common electrodes and routing wires in a touch sensor integratedtype display device according to the fourth embodiment of the invention.

Referring to FIG. 12, the touch sensor integrated display deviceaccording to the fourth embodiment of the invention includes an activearea AA and a bezel area BA outside the active area AA. The active areaAA is an area in which touch/common electrodes Tx11 to Tx19, Tx21 toTx29, Tx31 to Tx39, Tx41 to Tx49, Tx51 to Tx59, Tx61 to Tx69, Tx71 toTx79, Tx81 to Tx89 and routing wires TW11 to TW19, TW21 to TW29, TW31 toTW39, TW41 to TW49, TW51 to TW59, TW61 to TW69, TW71 to TW79, TW81 toTW89 are arranged and data are displayed. The bezel area BA is an areain which various wires including routing wires extended from the activearea AA for driving and sensing touch/common electrodes and drive ICsmay be disposed.

The touch sensor integrated type display device according to the fourthembodiment of the invention is substantially the same as the touchsensor integrated type display device according to the second embodimentof the invention, except that lengths of the routing wires TW12, TW14,TW16, TW18; TW21, TW23, TW25, TW27, TW29; TW32, TW34, TW36, TW38; TW41,TW43, TW45, TW47, TW49; TW52, TW54, TW56, TW58; TW61, TW63, TW65, TW67,TW69; TW72, TW74, TW76, TW78; TW81, TW83, TW85, TW87, TW89 arranged inthe first direction are same as each other (in other words, all thoserouting wires have the same length), and lengths of the routing wiresTW11, TW31, TW51, TW71; TW22, TW42, TW62, TW82; TW13, TW33, TW53, TW73;TW24, TW44, TW64, TW84; TW15, TW35, TW55, TW75; TW26, TW46, TW66, TW86;TW17, TW37, TW57, TW77; TW28, TW48, TW68, TW88; and TW19, TW39, TW59,TW79 arranged in the second direction are same as each other (in otherwords, all those routing wires have the same length).

Accordingly, a detailed description for the connection relationshipbetween the routing wires and the touch/common electrodes and thecross-sectional structures of the touch sensor integrated type accordingto the second embodiment of the invention will be omitted because theyare substantially the same as the description related to FIGS. 6 to 9B.

According to the touch sensor integrated type display device accordingto the fourth embodiment of the invention, it is possible to removedeviation of parasitic capacitance due to length difference of routingwires because lengths of the routing wires arranged in the firstdirection are same as each other, and lengths of the routing wiresarranged in the second direction are same as each other. Therefore, itis possible to enhance touch accuracy.

Hereinafter, a touch sensor integrated type display device according tothe fifth embodiment of the invention will be described with referenceto FIG. 13.

FIG. 13 is a planar view illustrating a relationship betweentouch/common electrodes and routing wires in a touch sensor integratedtype display device according to the fifth embodiment of the invention.

Referring to FIG. 13, the touch sensor integrated display deviceaccording to the fifth embodiment of the invention includes an activearea AA and a bezel area BA outside the active area AA. The active areaAA is an area in which touch/common electrodes Tx11 to Tx1 c, Tx21 toTx2 c, Tx31 to Tx3 c, Tx41 to Tx4 c, Tx51 to Tx5 c, Tx61 to Tx6 c, Tx71to Tx7 c, and Tx81 to Tx8 c and routing wires TW11 to TW1 c, TW21 to TW2c, TW31 to TW3 c, TW41 to TW4 c, TW51 to TW5 c, TW61 to TW6 c, TW71 toTW7 c, and TW81 to TW8 c are arranged and data are displayed. The bezelarea BA is an area in which various wires including routing wiresextended from the active area AA for driving and sensing touch/commonelectrodes and drive ICs may be disposed.

The touch sensor integrated type display device according to the fifthembodiment of the invention is substantially the same as the touchsensor integrated type display device according to the first embodimentof the invention, except that drive ICs IC_L1, IC_L2, IC_R1, IC_R2,IC_U1, IC_U2, IC_U3, IC_LO1, IC_LO2, and IC_LO3 are disposed at left,right, upper and lower sides of the active area AA and the drive ICsIC_L1, IC_L2, IC_R1, IC_R2, IC_U1, IC_U2, IC_U3, IC_LO1, IC_LO2, andIC_LO3 drive and sense touch/common electrodes Tx11, Tx13, Tx15, Tx22,Tx24, Tx26, Tx31, Tx33, Tx35, Tx42, Tx44, Tx46; Tx51, Tx53, Tx55, Tx62,Tx64, Tx66, Tx71, Tx73, Tx75, Tx82, Tx84, Tx86; Tx17, Tx19, Tx1 b, Tx28,Tx2 a, Tx2 c, Tx37, Tx39, Tx3 b, Tx48, Tx4 a, Tx4 c; Tx57, Tx59, Tx5 b,Tx68, Tx6 a, Tx6 c, Tx77, Tx79, Tx7 b, Tx88, Tx8 a, Tx8 c; Tx21, Tx41,Tx12, Tx32, Tx23, Tx43, Tx14, Tx34; Tx25, Tx45, Tx16, Tx36, Tx27, Tx47,Tx18, Tx38; Tx29, Tx49, Tx1 a, Tx3 a, Tx2 b, Tx4 b, Tx1 c, Tx3 c; Tx61,Tx81, Tx52, Tx72, Tx63, Tx83, Tx54, Tx74; and Tx65, Tx85, Tx56, Tx76,Tx67, Tx87, Tx58, Tx78; Tx69, Tx89, Tx5 a, Tx7 a, Tx6 b, Tx8 b, Tx5 c,Tx7 c disposed in predetermined areas L1A, L2A, R1A, R2A, U1A, U2A, U3A,LO1A, LO2A, and LO3A of the active area AA.

Accordingly, a detailed description for the connection relationshipbetween the routing wires and the touch/common electrodes and thecross-sectional structures of the touch sensor integrated type accordingto the fifth embodiment of the invention will be omitted because theyare substantially the same as the description related to FIGS. 6 to 9B.

Hereinafter, the touch sensor integrated type display device accordingto the fifth embodiment of the invention different from the constructionof the first embodiment will be described.

The active area AA of the touch sensor integrated display deviceaccording to the fifth embodiment of the invention includes first totenth areas L1A, L2A, R1A, R2A, U1A, U2A, U3A, LO1A, LO2A, and LO3Acorresponding to first to tenth drive ICs IC_L1, IC_L2, IC_R1, IC_R2,ICU1, IC_U2, IC_U3, IC_LO1, IC_LO2, and IC_LO3. The first to fourthareas L1A, L2A, R1A and R2A overlap the fifth to tenth areas U1A, U2A,U3A, LO1A, LO2A, and LO3A. First to tenth touch/common electrodes Tx11,Tx13, Tx15, Tx22, Tx24, Tx26, Tx31, Tx33, Tx35, Tx42, Tx44, Tx46; Tx51,Tx53, Tx55, Tx62, Tx64, Tx66, Tx71, Tx73, Tx75, Tx82, Tx84, Tx86; Tx17,Tx19, Tx1 b, Tx28, Tx2 a, Tx2 c, Tx37, Tx39, Tx3 b, Tx48, Tx4 a, Tx4 c;Tx57, Tx59, Tx5 b, Tx68, Tx6 a, Tx6 c, Tx77, Tx79, Tx7 b, Tx88, Tx8 a,Tx8 c; Tx21, Tx41, Tx12, Tx32, Tx23, Tx43, Tx14, Tx34; Tx25, Tx45, Tx16,Tx36, Tx27, Tx47, Tx18, Tx38; Tx29, Tx49, Tx1 a, Tx3 a, Tx2 b, Tx4 b,Tx1 c, Tx3 c; Tx61, Tx81, Tx52, Tx72, Tx63, Tx83, Tx54, Tx74; Tx65,Tx85, Tx56, Tx76, Tx67, Tx87, Tx58, Tx78; and Tx69, Tx89, Tx5 a, Tx7 a,Tx6 b, Tx8 b, Tx5 c, Tx7 c are respectively disposed in the first totenth areas L1A, L2A, R1A, R2A, U1A, U2A, U3A, LO1A, LO2A and LO3A.

The first touch/common electrodes Tx11, Tx13, Tx15, Tx22, Tx24, Tx26,Tx31, Tx33, Tx35, Tx42, Tx44 and Tx46 disposed in the first area L1A areconnected to the first drive IC IC_L1 disposed at a left side of theactive area AA via first routing wires TW11, TW13, TW15, TW22, TW24,TW26, TW31, TW33, TW35, TW42, TW44 and TW46 arranged in a firstdirection.

The second touch/common electrodes Tx51, Tx53, Tx55, Tx62, Tx64, Tx66,Tx71, Tx73, Tx75, Tx82, Tx84 and Tx86 disposed in the second area L2Aare connected to the second drive IC IC_L2 disposed at the left side ofthe active area AA via second routing wires TW51, TW53, TW55, TW62,TW64, TW66, TW71, TW73, TW75, TW82, TW84 and TW86 arranged in the firstdirection.

The third touch/common electrodes Tx17, Tx19, Tx1 b, Tx28, Tx2 a, Tx2 c,Tx37, Tx39, Tx3 b, Tx48, Tx4 a and Tx4 c disposed in the third area R1Aare connected to the third drive IC IC_R1 disposed at a right side ofthe active area AA via third routing wires TW17, TW19, TW1 b, TW28, TW2a, TW2 c, TW37, TW39, TW3 b, TW48, TW4 a and TW4 c arranged in a thirddirection which is a reverse direction of the first direction.

The fourth touch/common electrodes Tx57, Tx59, Tx5 b, Tx68, Tx6 a, Tx6c, Tx77, Tx79, Tx7 b, Tx88, Tx8 a and Tx8 c disposed in the fourth areaR2A are connected to the fourth drive IC IC_R2 disposed at the rightside of the active area AA via fourth routing wires TW17, TW19, TW1 b,TW28, TW2 a, TW2 c, TW37, TW39, TW3 b, TW48, TW4 a and TW4 c arranged inthe third direction.

The fifth area U1A overlaps a portion of the first area L1A. The fifthtouch/common electrodes Tx21, Tx41, Tx12, Tx32, Tx23, Tx43, Tx14 andTx34 disposed in the fifth area U1A are connected to the fifth drive ICU1 disposed at an upper side of the active area AA via fifth routingwires TW21, TW41, TW12, TW32, TW23, TW43, TW14 and TW34 arranged in asecond direction.

The sixth area U2A overlaps a portion of the first area L1A and aportion of the third area R1A. The sixth touch/common electrodes Tx25,Tx45, Tx16, Tx36, Tx27, Tx47, Tx18 and Tx38 disposed in the sixth areaU2A are connected to the sixth drive IC U2 disposed at the upper side ofthe active area AA via sixth routing wires TW25, TW45, TW16, TW36, TW27,TW47, TW18 and TW38 arranged in the second direction.

The seventh area U3A overlaps a portion of the third area R1A. Theseventh touch/common electrodes Tx29, Tx49, Tx1 a, Tx3 a, Tx2 b, Tx4 b,Tx1 c and Tx3 c disposed in the seventh area U3A are connected to theseventh drive IC U3 disposed at the upper side of the active area AA viaseventh routing wires TW29, TW49, TW1 a, TW3 a, TW2 b, TW4 b, TW1 c andTW3 c arranged in the second direction.

The eighth area LO1A overlaps a portion of the second area L2A. Theeighth touch/common electrodes Tx61, Tx81, Tx52, Tx72, Tx63, Tx83, Tx54and Tx74 disposed in the eighth area LO1A are connected to the eighthdrive IC LO1 disposed at a lower side of the active area AA via eighthrouting wires TW61, TW81, TW52, TW72, TW63, TW83, TW54 and TW74 arrangedin a fourth direction which is a reverse direction of the seconddirection.

The ninth area LO2A overlaps a portion of the second area L2A and aportion of the fourth area R2A. The ninth touch/common electrodes Tx65,Tx85, Tx56, Tx76, Tx67, Tx87, Tx58 and Tx78 disposed in the ninth areaLO2A are connected to the ninth drive IC LO1 disposed at the lower sideof the active area AA via ninth routing wires TW65, TW85, TW56, TW76,TW67, TW87, TW58 and TW78 arranged in the fourth direction.

The tenth area LO3A overlaps a portion of the fourth area R2A. The tenthtouch/common electrodes Tx69, Tx89, Tx5 a, Tx7 a, Tx6 b, Tx8 b, Tx5 cand Tx7 c disposed in the tenth area LO3A are connected to the tenthdrive IC LO3 disposed at the lower side of the active area AA via tenthrouting wires TW69, TW89, TW5 a, TW7 a, TW6 b, TW8 b, TW5 c and TW7 carranged in the fourth direction.

In the touch sensor integrated type display device according to thefifth embodiment of the invention, the first to fourth touch/commonelectrodes Tx11, Tx13, Tx15, Tx22, Tx24, Tx26, Tx31, Tx33, Tx35, Tx42,Tx44, Tx46; Tx51, Tx53, Tx55, Tx62, Tx64, Tx66, Tx71, Tx73, Tx75, Tx82,Tx84, Tx86; Tx17, Tx19, Tx1 b, Tx28, Tx2 a, Tx2 c, Tx37, Tx39, Tx3 b,Tx48, Tx4 a, Tx4 c; and Tx57, Tx59, Tx5 b, Tx68, Tx6 a, Tx6 c, Tx77,Tx79, Tx7 b, Tx88, Tx8 a, Tx8 c disposed in the first to fourth areasL1A, L2 a, R1A and R2 a are respectively connected to the first tofourth drive ICs IC_L1, IC_L2, IC_R1 and IC_R2 via first to fourthrouting wires TW11, TW13, TW15, TW22, TW24, TW26, TW31, TW33, TW35,TW42, TW44, TW46; TW51, TW53, TW55, TW62, TW64, TW66, TW71, TW73, TW75,TW82, TW84, TW86; TW17, TW19, TW1 b, TW28, TW2 a, TW2 c, TW37, TW39, TW3b, TW48, TW4 a, TW4 c; and TW57, TW59, TW5 b, TW68, TW6 a, TW6 c, TW77,TW79, TW7 b, TW88, TW8 a, TW8 c arranged in the first direction. Thefifth to tenth touch/common electrodes Tx21, Tx41, Tx12, Tx32, Tx23,Tx43, Tx14, Tx34; Tx25, Tx45, Tx16, Tx36, Tx27, Tx47, Tx18, Tx38; Tx29,Tx49, Tx1 a, Tx3 a, Tx2 b, Tx4 b, Tx1 c, Tx3 c; Tx61, Tx81, Tx52, Tx72,Tx63, Tx83, Tx54, Tx74; Tx65, Tx85, Tx56, Tx76, Tx67, Tx87, Tx58, Tx78;and Tx69, Tx89, Tx5 a, Tx7 a, Tx6 b, Tx8 b, Tx5 c, Tx7 c disposed in thefifth to tenth areas U1A, U2A, U3A, LO1A, LO2A and LO3A are respectivelyconnected to the first to fourth drive ICs IC_U1, IC_U2, IC_U3, IC_LO1,IC_LO2 and IC_LO3 via fifth to tenth routing wires TW21, TW41, TW12,TW32, TW23, TW43, TW14, TW34; TW25, TW45, TW16, TW36, TW27, TW47, TW18,TW38; TW29, TW49, TW1 a, TW3 a, TW2 b, TW4 b, TW1 c, TW3 c; TW61, TW81,TW52, TW72, TW63, TW83, TW54, TW74; TW65, TW85, TW56, TW76, TW67, TW87,TW58, TW78; and TW69, TW89, TW5 a, TW7 a, TW6 b, TW8 b, TW5 c, TW7 carranged in the second direction.

According to the touch sensor integrated type display device of thefifth embodiment of the invention, it is possible to reduce a number ofthe routing wires disposed at one side to one half in comparison to thetouch sensor integrated type display device of the first to fourthembodiments because the touch/common electrodes disposed in the activearea AA are connected to the drive ICs disposed at the left, right,upper and lower sides of the active area AA. Accordingly, the touchsensor integrated type display device of the fifth embodiment of theinvention can be applied to a large screen display.

Hereinafter, a touch sensor integrated type display device according tothe sixth embodiment of the invention will be described with referenceto FIG. 14.

FIG. 14 is a planar view illustrating a relationship betweentouch/common electrodes and routing wires in a touch sensor integratedtype display device according to the sixth embodiment of the invention.

Referring to FIG. 14, the touch sensor integrated display deviceaccording to the sixth embodiment of the invention includes an activearea AA and a bezel area BA outside the active area AA. The active areaAA is an area in which touch/common electrodes Tx11 to Tx1 c, Tx21 toTx2 c, Tx31 to Tx3 c, Tx41 to Tx4 c, Tx51 to Tx5 c, Tx61 to Tx6 c, Tx71to Tx7 c, and Tx81 to Tx8 c and routing wires TW11 to TW1 c, TW21 to TW2c, TW31 to TW3 c, TW41 to TW4 c, TW51 to TW5 c, TW61 to TW6 c, TW71 toTW7 c, and TW81 to TW8 c are arranged and data are displayed. The bezelarea BA is an area in which various wires including routing wiresextended from the active area AA for driving and sensing touch/commonelectrodes and drive ICs may be disposed.

The touch sensor integrated type display device according to the sixthembodiment of the invention is substantially the same as the touchsensor integrated type display device according to the fifth embodimentof the invention, except that lengths of the routing wires disposed in asame direction are same as each other.

More specifically, lengths of the first routing wires TW11, TW13, TW15,TW22, TW24, TW26, TW31, TW33, TW35, TW42, TW44 and TW46 disposed in thefirst direction in the first area L1A are same as each other.

Lengths of the second routing wires TW51, TW53, TW55, TW62, TW64, TW66,TW71, TW73, TW75, TW82, TW84 and TW86 disposed in the first direction inthe second area L2A are same as each other.

Lengths of the third routing wires TW17, TW19, TW1 b, TW28, TW2 a, TW2c, TW37, TW39, TW3 b, TW48, TW4 a and TW4 c disposed in the thirddirection in the third area R1A are same as each other.

Lengths of the fourth routing wires TW57, TW59, TW5 b, TW68, TW6 a, TW6c, TW77, TW79, TW7 b, TW88, TW8 a and TW8 c disposed in the thirddirection in the third area R2A are same as each other.

Lengths of the fifth routing wires TW21, TW41, TW12, TW32, TW23, TW43,TW14 and TW34 disposed in the second direction in the fifth area U1A aresame as each other.

Lengths of the sixth routing wires TW25, TW45, TW16, TW36, TW27, TW47,TW18 and TW38 disposed in the second direction in the sixth area U2A aresame as each other.

Lengths of the seventh routing wires TW29, TW49, TW1 a, TW3 a, TW2 b,TW4 b, TW1 c and TW3 c disposed in the second direction in the seventharea U3A are same as each other.

Lengths of the eighth routing wires TW61, TW81, TW52, TW72, TW63, TW83,TW54 and TW74 disposed in the fourth direction in the eighth area LO1Aare same as each other.

Lengths of the ninth routing wires TW65, TW85, TW56, TW76, TW67, TW87,TW58 and TW78 disposed in the fourth direction in the ninth area LO2Aare same as each other.

Lengths of the tenth routing wires TW69, TW89, TW5 a, TW7 a, TW6 b, TW8b, TW5 c and TW7 c disposed in the fourth direction in the ninth areaLO3A are same as each other.

Accordingly, a detailed description for the connection relationshipbetween the routing wires and the touch/common electrodes and thecross-sectional structures of the touch sensor integrated type accordingto the sixth embodiment of the invention will be omitted because theyare substantially the same as the description related to FIGS. 6 to 9B.

According to the touch sensor integrated type display device accordingto the sixth embodiment of the invention, it is possible to removedeviation of parasitic capacitance due to length difference of routingwires because lengths of the routing wires arranged in a same directionare same as each other. Therefore, it is possible to enhance touchaccuracy in comparison to the touch sensor integrated type displaydevice according to the fifth embodiment of the invention.

The touch sensor integrated type display devices according to the fifthand sixth embodiments of the invention shown in FIGS. 13 and 14illustrate that the active area AA includes the first to fourth areasL1A, L2A, R1A and R2A for the first to fourth drive ICs IC_L1, IC_L2,IC_R1 and ICR2 disposed at the left and right sides of the active areaAA and the fifth to tenth areas U1A, U2A, U3A, LO1A, LO2A, and LO3A forthe fifth to tenth drive ICs IC_U1, IC_U2, IC_U3, IC_LO1, IC_LO2 andIC_LO3 disposed at the upper and lower sides of the active area AA, andeach size of the first to fourth areas L1A, L2A, R1A and R2A isdifferent from that of the fifth to tenth areas U1A, U2A, U3A, LO1A,LO2A, and LO3A. However, the invention is not limited thereto. The sizeor number of the areas for the drive ICs disposed at the left, right,upper and lower sides of the active area AA may be adjusted asnecessary.

Hereinafter, operations of the touch sensor integrated type displaydevices according to the first to sixth embodiments of the inventionwill be described with reference to FIG. 15.

FIG. 15 is a timing diagram showing a display operation period at adisplay mode and a touch operation period at a touch mode for the touchsensor integrated type display devices according to the first and sixthembodiments of the invention.

FIG. 15 shows only the area corresponding to one touch/common electrodein order to simplify and clarify the description of the invention

Referring to FIG. 15, the touch sensor integrated type display devicesaccording to the first to sixth embodiments of the invention areoperated in a time-division in which one frame period is time-dividedinto a display operation period DP and a touch operation period TP.

Alternatively, the touch sensor integrated type display devicesaccording to the first to sixth embodiments of the invention may beoperated in a time-division in which one frame period is time-dividedinto a plurality of display operation periods and a plurality of touchoperation period which are alternating.

Each drive IC supplies a common voltage Vcom to the touch/commonelectrode Tx during a display operation period of one frame period 1F,and a touch driving voltage Vtsp to the touch/common electrode Tx duringa touch operation period of the one frame period 1F.

During the display operation period, a gate high voltage VGH or a gatelow voltage VGL is sequentially supplied to the gate lines GL1 and GL2by the gate driver (not shown). Also data voltages Vd1, Vd2 and Vd3 aresupplied to the data lines DL1, DL2 and DL3 by the source driver (notshown) or the driver IC, thereby displaying an image on the active areaAA. The data voltages Vd1, Vd2 and Vd3 may be supplied to the data linesDL1, DL2 and DL3 by the driver IC.

During the touch operation period, a first voltage V1 is supplied to allof the gate lines GL1 and GL2. The first voltage V1 has a phase andamplitude same as that of the touch operation voltage Vtsp. Also, asecond voltage V2 is supplied to all of the data lines DL1, DL2 and DL3.The second voltage V2 has a phase and amplitude same as that of thetouch operation voltage Vtsp.

More specifically, the drive IC supplies the common voltage Vcom to thetouch/common electrodes Tx via a first multiplexer MUX1 during thedisplay operation period. At this time, the gate high voltage VGH issequentially supplied to the gate lines GL1 and GL2 via secondmultiplexers MUX2. The gate low voltage VGL is supplied to the gatelines to which the gate high voltage VGH is not supplied. The datavoltages Vd1 to Vd3 are supplied to the data lines DL1 to DL3respectively, via third multiplexers MUX3.

The drive IC supplies the touch driving voltage Vtsp to all of thetouch/common electrodes Tx via the first multiplexer MUX1 during thetouch operation period TP. At this time, the first voltage V1 issupplied to all of the gate lines GL1 and GL2 via the secondmultiplexers MUX2. The first voltage V1 has a phase and amplitude sameas that of the touch driving voltage Vtsp. Also, the second voltage V2is supplied to all of the data lines DL1 to DL2 via the thirdmultiplexers MUX3. The second voltage V2 has a phase and amplitude sameas that of the touch driving voltage Vtsp.

Herein, the first and second voltages V1 and V2 may include thefollowing voltage values.

-   -   (1) Voltage having a phase same as that of the touch driving        voltage Vtsp and an amplitude in which a maximum value and a        minimum value of the amplitude are same as those of the touch        driving voltage Vtsp    -   (2) Voltage having a phase same as that of the touch driving        voltage Vtsp and an amplitude in which the difference between a        maximum value and a minimum value of the amplitude is same as        the difference between a maximum value and a minimum value of        the amplitude of the touch driving voltage Vtsp

The first to third multiplexers MUX1 to MUX3 may be integrated into thedisplay panel, or integrated into a source PCB (not shown) on which thedrive IC is mounted.

In the touch sensor integrated type display devices according to thefirst to sixth embodiments of the invention, there are less parasiticcapacitances between the routing wires and the gate lines GL and/or therouting wires and the data lines DL because the first voltage V1 and/orthe second voltage V2 having the phase and amplitude same to those ofthe touch driving voltage Vtsp supplied to the touch/common electrodesTx are also supplied to the gate lines GL or data lines DL. As a result,it may be possible to reduce reduction of touch sensibility due to theparasitic capacitances.

Also, it may be possible to reduce reduction of touch sensibility due toenlargement of the touch/common electrode and/or some touch/commonelectrodes which are not connected to any routing wires because therouting wires are arranged in, for example, both directions that arecrossing each other.

It will be apparent to those skilled in the art that variousmodifications and variation can be made in the present invention withoutdeparting from the spirit or scope of the invention. Thus, it isintended that the present invention cover the modifications andvariations of this invention provided they come within the scope of theappended claims and their equivalents.

What is claimed is:
 1. A display device integrated with a touch sensorcomprising: a plurality of gate lines and a plurality data linescrossing each other; a plurality of pixel electrodes between the datalines; a plurality of touch/common electrodes; a first group of routingwires connected to a first subset of the touch/common electrodes andarranged in a first direction from the first subset of the touch/commonelectrodes; a second group of routing wires connected to a second subsetof the touch/common electrodes and arranged in a second direction fromthe second subset of the touch/common electrodes; a third group ofrouting wires connected to a third subset of the touch/common electrodesand arranged in a third direction from the third subset of thetouch/common electrodes; and a fourth group of routing wires connectedto a fourth subset of the touch/common electrodes and arranged in thesecond direction from the fourth subset of the touch/common electrodes.2. The display device of claim 1, further comprising: a first drive ICconnected to drive the first group of routing wires; a second drive ICconnected to drive the second group of routing wires; a third drive ICconnected to the drive third group of routing wires; and a fourth driveIC connected to the drive fourth group of routing wires.
 3. The displaydevice of claim 2, wherein the first drive IC is configured to supply acommon voltage to the first subset of the touch/common electrodes duringa display operation period of one frame period, and supply a touchdriving voltage to the first subset of the touch/common electrodesduring a touch operation period of the one frame period, and the seconddrive IC is configured to supply the common voltage to the second subsetof the touch/common electrodes during the display operation period, andsupply the touch driving voltage to the second subset of thetouch/common electrodes during the touch operation period, the thirddrive IC is configured to supply the common voltage to the third subsetof the touch/common electrodes during the display operation period, andsupply the touch driving voltage to the third subset of the touch/commonelectrodes during the touch operation period, and the fourth drive IC isconfigured to supply the common voltage to the fourth subset of thetouch/common electrodes during the display operation period, and supplythe touch driving voltage to the fourth subset of the touch/commonelectrodes during the touch operation period, and the display device isconfigured to, during the touch operation period, supply a first voltagehaving a phase and an amplitude same as the phase and the voltage,respectively, of the touch driving voltage to the gate lines and supplya second voltage having a phase and an amplitude same as the phase andthe voltage, respectively, of the touch driving voltage to the datalines.
 4. The display device of claim 1, further comprising: a fifthgroup of routing wires connected to a fifth subset of the touch/commonelectrodes and arranged in the first direction from the fifth subset ofthe touch/common electrodes; a sixth group of routing wires connected toa sixth subset of the touch/common electrodes and arranged in a fourthdirection from the sixth subset of the touch/common electrodes; aseventh group of routing wires connected to a seventh subset of thetouch/common electrodes and arranged in the third direction from theseventh subset of the touch/common electrodes; and an eighth group ofrouting wires connected to an eighth subset of the touch/commonelectrodes and arranged in the fourth direction from the eighth subsetof the touch/common electrodes.
 5. The display device of claim 4,wherein lengths of the first group of routing wires are the same,lengths of the second group of routing wires are the same, lengths ofthe third group of routing wires are the same, lengths of the fourthgroup of routing wires are the same, lengths of the fifth group ofrouting wires are the same, lengths of the sixth group of routing wiresare the same, lengths of the seventh group of routing wires are thesame, and lengths of the eighth group of routing wires are the same. 6.The display device of claim 4, wherein the first and third directionsare the same as an arrangement direction of the gate lines, and thesecond and the fourth directions are the same as an arrangementdirection of the data lines.
 7. The display device of claim 4, whereinthe first and third directions are the same as an arrangement directionof the data lines, and the second and the fourth directions are the sameas an arrangement direction of the gate lines.
 8. The display device ofclaim 4, further comprising: a first drive IC connected to drive thefirst group of routing wires; a second drive IC connected to drive thesecond group of routing wires; a third drive IC connected to drive thethird group of routing wires; a fourth drive IC connected to drive thefourth group of routing wires; a fifth drive IC connected to drive thefifth group of routing wires; a sixth drive IC connected to drive thesixth group of routing wires; a seventh drive IC connected to drive theseventh group of routing wires; and an eighth drive IC connected todrive the eighth group of routing wires.
 9. The display device of claim8, wherein the first drive IC is configured to supply a common voltageto the first subset of the touch/common electrodes during a displayoperation period of one frame period, and supply a touch driving voltageto the first subset of the touch/common electrodes during a touchoperation period of the one frame period, and the second drive IC isconfigured to supply the common voltage to the second subset of thetouch/common electrodes during the display operation period, and supplythe touch driving voltage to the second subset of the touch/commonelectrodes during the touch operation period, the third drive IC isconfigured to supply the common voltage to the third subset of thetouch/common electrodes during the display operation period, and supplya touch driving voltage to the third subset of the touch/commonelectrodes during the touch operation period, and the fourth drive IC isconfigured to supply the common voltage to the fourth subset of thetouch/common electrodes during the display operation period, and supplythe touch driving voltage to the fourth subset of the touch/commonelectrodes during the touch operation period, the fifth drive IC isconfigured to supply a common voltage to the fifth subset of thetouch/common electrodes during the display operation period, and supplythe touch driving voltage to the fifth subset of the touch/commonelectrodes during the touch operation period, and the sixth drive IC isconfigured to supply the common voltage to the sixth subset of thetouch/common electrodes during the display operation period, and supplythe touch driving voltage to the sixth subset of the touch/commonelectrodes during the touch operation period, the seventh drive IC isconfigured to supply the common voltage to the seventh subset of thetouch/common electrodes during the display operation period, and supplythe touch driving voltage to the seventh subset of the touch/commonelectrodes during the touch operation period, and the eighth drive IC isconfigured to supply the common voltage to the eighth subset of thetouch/common electrodes during the display operation period, and supplythe touch driving voltage to the eighth subset of the touch/commonelectrodes during the touch operation period, and the display device isconfigured to, during the touch operation period, supply a first voltagehaving a phase and an amplitude same as the phase and the amplitude,respectively, of the touch driving voltage to the gate lines and supplya second voltage having a phase and an amplitude same as the phase andthe amplitude, respectively, of the touch driving voltage to the datalines.
 10. A display device integrated with a touch sensor comprising: aplurality of gate lines and a plurality of data lines crossing eachother; a plurality of pixel electrodes between the data lines; aplurality of touch/common electrodes; a first group of routing wiresconnected to a first subset of the touch/common electrodes and arrangedin a first direction from the first subset of the touch/commonelectrodes; a second group of routing wires connected to a second subsetof the touch/common electrodes and arranged in a second direction fromthe second subset of the touch/common electrodes; a first drivingcircuit to, during a display operation period of a frame period, drive acommon voltage to the first subset of the touch/common electrodes viathe first group of routing wires and during a touch operation period ofthe frame period, drive a touch driving voltage to the first subset ofthe touch/common electrodes via the first group of routing wires; and asecond driving circuit to, during a display operation period of a frameperiod, drive a common voltage to the second subset of the touch/commonelectrodes via the second group of routing wires and during a touchoperation period of the frame period, drive a touch driving voltage tothe second subset of the touch/common electrodes via the second group ofrouting wires; wherein the first subset of the touch/common electrodesis disposed at an upper side in an active area and includes n number oftouch/common electrodes, wherein the second subset of the touch/commonelectrodes is disposed at a lower side in the active area and includes nnumber of touch/common electrodes, wherein the n is a natural number.11. The display device of claim 10, wherein the first driving circuit isconnected to at least half of the touch/common electrodes of the firstsubset of the touch/common electrodes via the first group of routingwires, wherein the second driving circuit is connected to at least halfof the touch/common electrodes of the second subset of the touch/commonelectrodes via the second group of routing wires.
 12. The display deviceof claim 10, wherein the first driving circuit is disposed at one sideof the display device and the second driving circuit is disposed atanother side of the display device opposite to the one side of thedisplay device.